Home / 9,884.38-13,640.55-5,408.03

Finding the Fourth Proportional to 9,884.38, 13,640.55 and 5,408.03

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Solution

The fourth proportional to 9,884.38, 13,640.55 and 5,408.03 is: 7,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,884.38 : 13,640.55 = 5,408.03 : x
  2. Step 2: Convert to fraction form
    9,884.38/13,640.55 = 5,408.03/x
  3. Step 3: Cross multiply
    9,884.38x = 13,640.55 × 5,408.03
  4. Step 4: Simplify right side
    9,884.38x = 73,768,476.58
  5. Step 5: Solve for x
    x = 73,768,476.58/9,884.38
  6. Step 6: Final answer
    x = 7,463.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.